JP4214083B2 - 堆積物の調査方法 - Google Patents
堆積物の調査方法 Download PDFInfo
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- JP4214083B2 JP4214083B2 JP2004159382A JP2004159382A JP4214083B2 JP 4214083 B2 JP4214083 B2 JP 4214083B2 JP 2004159382 A JP2004159382 A JP 2004159382A JP 2004159382 A JP2004159382 A JP 2004159382A JP 4214083 B2 JP4214083 B2 JP 4214083B2
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- 238000000034 method Methods 0.000 title claims description 16
- 239000013049 sediment Substances 0.000 title claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 51
- 230000010355 oscillation Effects 0.000 claims description 35
- 239000011435 rock Substances 0.000 claims description 33
- 238000011835 investigation Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000005484 gravity Effects 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims 1
- 229910021532 Calcite Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000013459 approach Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000011179 visual inspection Methods 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
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Description
11 電源
12 発振回路
13 第一のコイル
20 受信部
21 第二のコイル
22 受信回路
23 周波数カウンタ
Claims (4)
- 1kHz〜9kHzの範囲の低周波数の発振回路と該発振回路の出力で励磁されて低周波磁界を発生するコイルと前記発振回路に電力を供給する電源からなる送信部と、該送信部の磁気信号を受信するコイルと受信した信号を解析する回路を含む移動自在の受信部とを使用し、
前記送信部を調査対象となる河川の岩石あるいはコンクリート塊の内部あるいは表面に設置して調査対象となる河川敷などの地域に疑似堆積物として配置し、
水流などで移動した前記送信部の位置を、前記受信部を移動させながら検出することにより前記擬似堆積物の動きを調査することを特徴とする堆積物の調査方法。 - 調査対象となる河川敷などの地域に配置されて水流などで移動した場合の動きを調査するための対象となる擬似堆積物であって、
1kHz〜9kHzの範囲の低周波数の発振回路と該発振回路の出力で励磁されて低周波磁界を発生するコイルと前記発振回路に電力を供給する電源からなる送信部を、調査対象となる河川の岩石あるいはコンクリート塊の内部あるいは表面に設置して成り、しかも全体の比重を配置場所の周囲の岩石と合わせることで周囲の岩石と流出の程度を近似させるようにしたことを特徴とする疑似堆積物。 - 1kHz〜9kHzの範囲の低周波数の発振回路と該発振回路の出力で励磁されて低周波磁界を発生するコイルと前記発振回路に電力を供給する電源からなる送信部と、該送信部の磁気信号を受信するコイルと受信した信号を解析する回路を含む移動自在の受信部とを含み、
前記送信部は、調査対象となる河川の岩石あるいはコンクリート塊の内部あるいは表面に設置されて調査対象となる河川敷などの地域に疑似堆積物として配置され、
水流などで移動した前記送信部の位置を、前記受信部を移動させながら検出することにより前記擬似堆積物の動きを調査することを特徴とする堆積物の調査システム。 - 請求項3に記載の堆積物の調査システムにおいて、
前記疑似堆積物全体の比重を当該疑似堆積物の配置場所の周囲の岩石と合わせることで周囲の岩石と流出の程度を近似させるようにしたことを特徴とする堆積物の調査システム。
Priority Applications (1)
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JP2004159382A JP4214083B2 (ja) | 2004-05-28 | 2004-05-28 | 堆積物の調査方法 |
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JP2004159382A JP4214083B2 (ja) | 2004-05-28 | 2004-05-28 | 堆積物の調査方法 |
Publications (2)
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JP2005337972A JP2005337972A (ja) | 2005-12-08 |
JP4214083B2 true JP4214083B2 (ja) | 2009-01-28 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5401110B2 (ja) * | 2008-02-04 | 2014-01-29 | 東京理学検査株式会社 | 位置計測方法 |
JP5576226B2 (ja) * | 2010-09-16 | 2014-08-20 | ニッカ電測株式会社 | 金属検出機 |
JP6450668B2 (ja) * | 2015-10-02 | 2019-01-09 | 公益財団法人鉄道総合技術研究所 | 土砂移動観測システム |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2586302B1 (fr) * | 1985-08-13 | 1988-02-12 | Commissariat Energie Atomique | Procede pour localiser un objet et determiner son orientation dans l'espace et dispositif de mise en oeuvre |
JP2001099831A (ja) * | 1999-09-30 | 2001-04-13 | Oyo Corp | 流出土砂の流送堆積状況の調査方法 |
JP2002092255A (ja) * | 2000-09-14 | 2002-03-29 | Dainippon Printing Co Ltd | 調査用配布物及び該調査用配布物を用いた調査方法及び調査システム |
JP3488445B2 (ja) * | 2001-06-05 | 2004-01-19 | 株式会社 拓和 | 流砂系における河床低下測定装置 |
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